Exascale Computing
Articles (12)
Argonne Moves ChemGraph Leaderboard to Monthly Runs as It Studies Score Variance
Across 71 public runs, GPT-4o-labelled scores ranged from 62.5% to 97.5%. Argonne says the files cannot always distinguish model behavior from system failures.
Why Simulation Supercomputers Are Being Pitched as AI Infrastructure
Simulation still fills the world's research supercomputers. Funding and vendor roadmaps have tilted to AI, and some practitioners feel pressure to pitch their machines that way.
The FP64 Debate Didn't Produce a Winner. It Produced a Joint Byline.
Dongarra, Hoefler, and Matsuoka now ask whether supercomputing needs GPUs at all, and the CPU-only machine atop the Top500 is their test vehicle.
China Retakes TOP500 With a CPU-Only Supercomputer Built Around Export Controls
LineShine, the system NSCC Shenzhen unveiled at the top of the 67th list, sustained 2.198 exaflops on LINPACK and took #1 on HPCG with zero accelerators and a domestic processor, interconnect, and operating system.
Britain's Sovereign-Compute Day: A £2bn AMD Bet Meets a £1.1bn State Plan
Britain is funding homegrown silicon for machines that, for now, run on an American vendor's chips. Whether that buys sovereignty or quietly rebrands dependence is the question the spending leaves open.
NIST's New HPC Security Overlay Turns Compliance Into a Throughput Problem
The final SP 800-234 overlay covers the 287 controls in the SP 800-53B Moderate baseline, adds AC-10 for concurrent interactive sessions, and tailors 60 controls across the access, management, computing, and storage zones defined in SP 800-223.
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Japan's Next Flagship Machine Abandons the Top500 Chase
FugakuNEXT pairs Fujitsu MONAKA-X CPUs with NVIDIA GPUs, ending Japan's all-Arm sovereign architecture and betting on throughput over benchmarks.
Slingshot Held Performance Under AI Traffic Patterns That Collapsed InfiniBand by 5x on Production Exascale
ISC 2026 research on LUMI, Leonardo, CRESCO8: Slingshot held performance; InfiniBand collapsed 5x under Incast, the AI gradient-sync traffic pattern.
Argonne Turns a Plain-English Prompt Into 11,182 GCMC Runs on Aurora
A planner/executor agent hierarchy drove a 5,591-MOF screening campaign across 256 Aurora nodes. Orchestration overhead came in under 90 seconds per run.
The shadow TOP500: private AI superclusters are redefining supercomputing
xAI's Cortex 2, Meta's mega-clusters, and the $100B NVIDIA-OpenAI deal represent computing installations that dwarf anything on the official rankings. The supercomputing world hasn't reckoned with what that means.
ORNL's Next-Generation Data Center Institute: National Lab Expertise Meets the AI Buildout
The people who built Frontier - the world's first exascale supercomputer - are now designing the next generation of AI data centers. The hyperscalers should be paying attention.
NSF's $457M Horizon Supercomputer Is Going to Morehouse College
The Leadership-Class Computing Facility's first new site selection in a generation lands at an HBCU. The workforce implications matter as much as the FLOPS.